2016 Florida Republican primary voters gave Trump more than double the votes of George Bush in the 2000 primary, 300,000+ more than Romney in 2012, 375,000+ more than McCain in 2008, and 36,000+ more than Rubio and Cruz combined in 2016

Florida Republican primary results, 2000, 2008, 2012, 2016 (2004 Fla. primary was canceled since G.W. Bush ran unopposed): 

2000 George Bush-516,263, McCain-139,465
2004-canceled (incumbent George W. Bush ran unopposed so primary was canceled)
2008 McCain-701,761, Romney-604,932
2012 Romney-776,159, Gingrich-534,121
2016 Trump-1,077,221, Rubio-636,653, Cruz-403,640
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Source: 2004 Florida primary canceled:

Tues., March 4, 2004 Florida primary canceled

2004, "2004 Presidential Primaries, Caucuses, and Conventions," thegreenpapers.com

"5 candidates, George W. Bush, Mike T. Miller, Kenneth Scot Stremsky, "Bill" Wyatt, and Joan Malone YeHanna, filed for ballot access for the 9 March 2004 Florida Republican Presidential Primary. However, only one candidate, President George W. Bush, was nominated by the Florida Republican Party. Since there was only one candidate, the primary was cancelled.
     
Tuesday 9 March 2004 (cancelled): 109 of 112 of Florida's delegates to the Republican National Convention are allocated to presidential contenders in today's Florida Presidential Primary.

• 75 district delegates are to be allocated to presidential contenders based on the primary results in each of the 8 congressional districts: each congressional district is assigned 3 National Convention delegates and the presidential contender receiving the greatest number of votes in that district will receive all 3 of that district's National Convention delegates.
• 34 at-large delegates (10 base at-large delegates plus 24 bonus delegates) are to be allocated to the presidential contender receiving the greatest number of votes in the primary statewide.

In addition, 3 party leaders, the National Committeeman, the National Committeewoman, and the chairman of the Florida's Republican Party, will attend the convention as unpledged delegates by virtue of their position."

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Comment: I looked for about a half hour for an additional source to substantiate that the 2004 Florida GOP primary had been canceled, but this was the only one I found. It states the primary was canceled because "only one candidate" "was nominated by the Florida Republican Party," that being GW Bush. I don't know if this means the Party has to "nominate" you to have ballot access, but in any case, it seems there was no 2004 primary.




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